求翻译：随着我国经济社会的发展，对能源的需求日益巨大。但我国多数油田已经过数十年的开发，产量逐步下降，开采难度加大。所以，二次采油甚至三次采油已称为各油田提高采收率的主要方法。但向地层中注入化学药剂后，会使采出油品的物理性质和化学成分变得更加复杂，更容易造成输送管线发生电化学腐蚀和应力腐蚀现象。因此，研究油田水的腐蚀情况对管线的腐蚀防护具有重要意义。是什么意思？

With the development of our economy and society, the growing demand for energy is huge. But the majority of our oil field has several decades of development, a gradual decline in production, increasing the difficulty of exploitation. Therefore, secondary recovery or tertiary oil recovery has been ca

As economic and social development of our country, the demand for energy. But most of our oil fields have already been several 10 step-by-step the development, production, and exploitation in difficulty. So, 2 times 3 times and even oil extraction has been known as the oil fields of the increase rat

Along with our country economic society development, is day by day huge to the energy demand.But our country most oil fields passed through the dozens of year development, the output drop gradually, mining difficulty enlarge.Therefore, two extraction three extractions has even been called various oi

As China's economic and social development, demand for energy is growing huge. But most of the oil fields in China have had decades of development, production gradually declined, mining difficulties. Therefore, secondary and even tertiary oil recovery has been referred to as the primary method of oi

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